X-Git-Url: http://wien.tomnetworks.com/gitweb/?a=blobdiff_plain;f=Mate%2FMethodPool.hs;h=5f787a25afad127167897d51381da0350dab4e39;hb=03ddf0056a8ebae7ce10d694bbf906c276677a33;hp=74e4ec63e899ffbf95440bb90774cb86687d9b55;hpb=25a042de1d9ae5598ba8bdea33c20aa2cbbb179b;p=mate.git diff --git a/Mate/MethodPool.hs b/Mate/MethodPool.hs index 74e4ec6..5f787a2 100644 --- a/Mate/MethodPool.hs +++ b/Mate/MethodPool.hs @@ -1,48 +1,160 @@ +{-# LANGUAGE CPP #-} {-# LANGUAGE OverloadedStrings #-} {-# LANGUAGE ForeignFunctionInterface #-} +#include "debug.h" module Mate.MethodPool where import Data.Binary +import Data.String.Utils import qualified Data.Map as M - - -import Text.Printf +import qualified Data.Set as S +import qualified Data.ByteString.Lazy as B +import System.Plugins import Foreign.Ptr import Foreign.C.Types import Foreign.C.String -import Foreign.StablePtr +import JVM.ClassFile + +import Harpy +import Harpy.X86Disassembler + +#ifdef DEBUG +import Text.Printf +#endif + +import Mate.BasicBlocks +import Mate.Types import Mate.X86CodeGen +import Mate.ClassPool +import Mate.Debug +import Mate.Utilities + +foreign import ccall "dynamic" + code_void :: FunPtr (IO ()) -> IO () + + +getMethodEntry :: CUInt -> CUInt -> IO CUInt +getMethodEntry signal_from methodtable = do + mmap <- getMethodMap + tmap <- getTrapMap + vmap <- getVirtualMap + + let w32_from = fromIntegral signal_from + let mi = tmap M.! w32_from + let mi'@(MethodInfo method cm sig) = + case mi of + (StaticMethod x) -> x + (VirtualMethod _ (MethodInfo methname _ msig)) -> newMi methname msig + (InterfaceMethod _ (MethodInfo methname _ msig)) -> newMi methname msig + _ -> error "getMethodEntry: no TrapCause found. abort." + where newMi mn = MethodInfo mn (vmap M.! fromIntegral methodtable) + -- bernhard (TODO): doesn't work with gnu classpath at some point. didn't + -- figured out the problem yet :/ therefore, I have no + -- testcase for replaying the situation. + -- setTrapMap $ M.delete w32_from tmap + entryaddr <- case M.lookup mi' mmap of + Nothing -> do + cls <- getClassFile cm + printfMp "getMethodEntry(from 0x%08x): no method \"%s\" found. compile it\n" w32_from (show mi') + mm <- lookupMethodRecursive method sig [] cls + case mm of + Just (mm', clsnames, cls') -> do + let flags = methodAccessFlags mm' + if S.member ACC_NATIVE flags + then do + -- TODO(bernhard): cleaner please... *do'h* + let sym1 = replace "/" "_" $ toString cm + parenth = replace "(" "_" $ replace ")" "_" $ toString $ encode sig + sym2 = replace ";" "_" $ replace "/" "_" parenth + symbol = sym1 ++ "__" ++ toString method ++ "__" ++ sym2 + printfMp "native-call: symbol: %s\n" symbol + nf <- loadNativeFunction symbol + setMethodMap $ M.insert mi' nf mmap + return nf + else do + rawmethod <- parseMethod cls' method sig + entry <- compileBB rawmethod (MethodInfo method (thisClass cls') sig) + addMethodRef entry mi' clsnames + return $ fromIntegral entry + Nothing -> error $ show method ++ " not found. abort" + Just w32 -> return w32 + return $ fromIntegral entryaddr + +lookupMethodRecursive :: B.ByteString -> MethodSignature -> [B.ByteString] -> Class Direct + -> IO (Maybe (Method Direct, [B.ByteString], Class Direct)) +lookupMethodRecursive name sig clsnames cls = + case res of + Just x -> return $ Just (x, nextclsn, cls) + Nothing -> if thisname == "java/lang/Object" + then return Nothing + else do + supercl <- getClassFile (superClass cls) + lookupMethodRecursive name sig nextclsn supercl + where + res = lookupMethodSig name sig cls + thisname = thisClass cls + nextclsn :: [B.ByteString] + nextclsn = thisname:clsnames + +-- TODO(bernhard): UBERHAX. ghc patch? +foreign import ccall safe "lookupSymbol" + c_lookupSymbol :: CString -> IO (Ptr a) + +loadNativeFunction :: String -> IO Word32 +loadNativeFunction sym = do + _ <- loadRawObject "ffi/native.o" + -- TODO(bernhard): WTF + resolveObjs (return ()) + ptr <- withCString sym c_lookupSymbol + if ptr == nullPtr + then error $ "dyn. loading of \"" ++ sym ++ "\" failed." + else return $ fromIntegral $ ptrToIntPtr ptr + +-- t_01 :: IO () +-- t_01 = do +-- (entry, _) <- testCase "./tests/Fib.class" "fib" +-- let int_entry = ((fromIntegral $ ptrToIntPtr entry) :: Word32) +-- let mmap = M.insert ("fib" :: String) int_entry M.empty +-- mapM_ (\(x,y) -> printf "%s at 0x%08x\n" x y) $ M.toList mmap +-- mmap2ptr mmap >>= set_mmap +-- demo_mmap -- access Data.Map from C +addMethodRef :: Word32 -> MethodInfo -> [B.ByteString] -> IO () +addMethodRef entry (MethodInfo mmname _ msig) clsnames = do + mmap <- getMethodMap + let newmap = foldr (\i -> M.insert (MethodInfo mmname i msig) entry) M.empty clsnames + setMethodMap $ mmap `M.union` newmap -foreign import ccall "get_mmap" - get_mmap :: IO (Ptr ()) -foreign import ccall "set_mmap" - set_mmap :: Ptr () -> IO () +compileBB :: RawMethod -> MethodInfo -> IO Word32 +compileBB rawmethod methodinfo = do + tmap <- getTrapMap -foreign import ccall "demo_mmap" - demo_mmap :: IO () + cls <- getClassFile (methClassName methodinfo) + let ebb = emitFromBB cls rawmethod + (_, Right right) <- runCodeGen ebb () () + let ((entry, _, _, new_tmap), _) = right + setTrapMap $ tmap `M.union` new_tmap -- prefers elements in tmap -type MMap = M.Map String Word32 + printfJit "generated code of \"%s\" from \"%s\":\n" (toString $ methName methodinfo) (toString $ methClassName methodinfo) + printfJit "\tstacksize: 0x%04x, locals: 0x%04x\n" (rawStackSize rawmethod) (rawLocals rawmethod) + mapM_ (printfJit "%s\n" . showAtt) (snd right) + printfJit "\n\n" + -- UNCOMMENT NEXT LINES FOR GDB FUN + -- if (toString $ methName methodinfo) == "thejavamethodIwant2debug" + -- then putStrLn "press CTRL+C now for setting a breakpoint. then `c' and ENTER for continue" >> getLine + -- else return "foo" + -- (1) build a debug build (see HACKING) and execute `make tests/Fib.gdb' + -- for example, where the suffix is important + -- (2) on getLine, press CTRL+C + -- (3) `br *0x'; obtain the address from the disasm above + -- (4) `cont' and press enter + return $ fromIntegral $ ptrToIntPtr entry -foreign export ccall getMethodEntry :: Ptr () -> CString -> IO CUInt -getMethodEntry :: Ptr () -> CString -> IO CUInt -getMethodEntry ptr_mmap cstr = do - mmap <- deRefStablePtr $ ((castPtrToStablePtr ptr_mmap) :: StablePtr MMap) - k <- peekCString cstr - case M.lookup k mmap of - Nothing -> return 0 - Just w32 -> return (fromIntegral w32) -t_01 :: IO () -t_01 = do - (entry, _) <- testCase "./tests/Fib.class" "fib" - let int_entry = ((fromIntegral $ ptrToIntPtr entry) :: Word32) - let mmap = M.insert ("fib" :: String) int_entry M.empty - mapM_ (\(x,y) -> printf "%s at 0x%08x\n" x y) $ M.toList mmap - ptr_mmap <- newStablePtr mmap - set_mmap $ castStablePtrToPtr ptr_mmap - demo_mmap -- access Data.Map from C +executeFuncPtr :: Word32 -> IO () +executeFuncPtr entry = + code_void ((castPtrToFunPtr $ intPtrToPtr $ fromIntegral entry) :: FunPtr (IO ()))